El hidrógeno pesa el 6.9 % del peso del aire qué cantidad de hidrógeno hay en un globo de 150 metros cúbicos de capacidad y el decímetro cúbico de aire pesa 1.3 gramos?

Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages

Abox is sliding on a frictionless surface when it suddenly begins to rain heavily. if the downpour of rainfall falls vertically into the box

Carbon tetrachloride (ccl4) is ionic or convalent